Just SLI'd my box been running a 8800GT OC now running two in SLI mode. Average game frame rates went from 54fps with one 8800GT now with two in SLI mode getting about 87fps. Noticed a little performance boost in game just a little smoother.

Just played Fire with SLI still lost LOL!

Im using my sons comp its not the best of comps by far... But we dont need better and i got laptop what i use for working... Also at home i got cable 2 megas. On my laptop i use net stick for 1 megas my boys also use xbox360 and im using router between comp&xbox360. I havent experied any lag peaks from this setting i have home
Like i wrote this comp i got for my sons its crap i know but halo dont need better..?:
Operating System Windows XP, Version 5.1.2600
Manufacturer INTEL_
Processor Intel(R) Celeron(R) D CPU 3.06GHz
Memory 1.51 GB
Hard Drive 74.54 GB, SAMSUNG HD080HJ
Video Card ATI Radeon HD 2600 XT
Monitor Acer x223w Q 22 inch
Sound_card ATI Function Driver for High Definition Audio - ATI AA01
Speakers/Headset Hama cs-453
Keyboard Logitech wave Enhanced (101- or 102-key)
Mouse HID-compliant mouse
Also i play using gamepad from logitech called rumblepad 2.

SNIPER(IRE) RIG

Manufacturer: Dell
Type: Alienware M17x Laptop
Video Card: Sli Dual 1GB GDDR3 NVIDIA GeForce GTX 280M
Processor: IntelCore 2 Extreme Quad QX9300
Display: 17-inch WideUXGA 1920 x 1200
Keyboard: AlienFX Illuminated Keyboard
Performance Raid 1- : 320GB 7,200RPM (2x320GB)

This was an expensive piece of tech..but well worth it, for what i do..Can be a bit heavy to carry around..(13lbs)..